Legal analysis: Buying and selling sand is illegal and may be suspected of illegal business operations. Whoever operates franchised or monopoly items or other restricted items as prescribed by laws or administrative regulations without permission, violates state regulations, engages in illegal business operations, disrupts market order, and if the circumstances are serious, shall be sentenced to fixed-term imprisonment of not more than five years or criminal detention, and shall also be sentenced to Or a fine of not less than one time but not more than five times the illegal income may be imposed.

Legal basis: Article 225 of the "Criminal Law of the People's Republic of China" The following fixed-term imprisonment or criminal detention, and concurrently or solely a fine of not less than one time but not more than five times the illegal income, or a fine of not less than one time but not more than five times the illegal income; if the circumstances are particularly serious, the sentence is to be not less than five years in prison and a fine of not less than one time but not more than five times the illegal income, or confiscation of property:

(1) Operating special items or other restricted items stipulated in laws and administrative regulations without permission;

(2) Buying and selling import and export licenses, import and export origins Certificates and other business licenses or approval documents stipulated in laws and administrative regulations;

(3) Illegal operations of securities, futures, and insurance businesses without approval from relevant national competent authorities, or illegal fund payment and settlement Business;

(4) Other illegal business activities that seriously disrupt market order.